This operator can help select your international flights, but you'll have to book them yourself help
Fly to/from Abeid Amani Karume Airport (ZNZ - Check price) on Zanzibar. Or fly to/from Dar es Salaam (DAR - Check price) . There are daily ferries between Dar es Salaam and Zanzibar.
A transfer from and back to the airport can be arranged for an extra cost
Additional accommodation before and at the end of the tour can be arranged for an extra cost
I had a few unplanned things like the group changing during the tour. The driver Richard was funny, knew the parks perfectly, but was sometimes moody and drove way too close to animals that were on the road. Still 5 Stars for Elizabeth...